Home / 190,034.19-262,229.33-128,655.53

Finding the Fourth Proportional to 190,034.19, 262,229.33 and 128,655.53

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Solution

The fourth proportional to 190,034.19, 262,229.33 and 128,655.53 is: 177,532.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,034.19 : 262,229.33 = 128,655.53 : x
  2. Step 2: Convert to fraction form
    190,034.19/262,229.33 = 128,655.53/x
  3. Step 3: Cross multiply
    190,034.19x = 262,229.33 × 128,655.53
  4. Step 4: Simplify right side
    190,034.19x = 33,737,251,478.27
  5. Step 5: Solve for x
    x = 33,737,251,478.27/190,034.19
  6. Step 6: Final answer
    x = 177,532.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.